// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////

package com.google.crypto.tink.keyderivation;

import com.google.crypto.tink.Parameters;

/** The public part of a {@link KeyDerivationKey}. */
public abstract class KeyDerivationParameters extends Parameters {
  public abstract Parameters getDerivedKeyParameters();

  /**
   * Whether this key needs a specific ID when it is in a Keyset.
   *
   * <p>Tink Keyset derivation always copies the ID of a key to the derived key. Hence,a {@link
   * KeyDerivationKey} needs a specific ID if and only if the derived key needs a specific ID, and
   * so this is always equal to {@code getDerivedParameters().hasIdRequirement()}.
   */
  @Override
  public boolean hasIdRequirement() {
    return getDerivedKeyParameters().hasIdRequirement();
  }
}
